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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one   *
3    * or more contributor license agreements.  See the NOTICE file *
4    * distributed with this work for additional information        *
5    * regarding copyright ownership.  The ASF licenses this file   *
6    * to you under the Apache License, Version 2.0 (the            *
7    * "License"); you may not use this file except in compliance   *
8    * with the License.  You may obtain a copy of the License at   *
9    *                                                              *
10   *   http://www.apache.org/licenses/LICENSE-2.0                 *
11   *                                                              *
12   * Unless required by applicable law or agreed to in writing,   *
13   * software distributed under the License is distributed on an  *
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
15   * KIND, either express or implied.  See the License for the    *
16   * specific language governing permissions and limitations      *
17   * under the License.                                           *
18   */ 
19  package org.apache.rat.document.impl.guesser;
20  
21  import java.util.Locale;
22  
23  import org.apache.rat.api.Document;
24  
25  public class ArchiveGuesser {
26      
27      public static final String[] ARCHIVE_EXTENSIONS = {
28          "jar", "gz",
29          "zip", "tar",
30          "bz", "bz2",
31          "rar", "war",
32      };
33  
34      public static final boolean isArchive(final Document document) {
35          
36          final String name = document.getName();
37          final boolean result = isArchive(name);
38          return result;
39      }
40  
41      /**
42       * Is a file by that name an archive?
43       */
44      public static final boolean isArchive(final String name) {
45          if (name == null) {return false;}
46          String nameToLower = name.toLowerCase(Locale.US);
47          boolean result = false;
48          for (int i = 0; !result && i < ArchiveGuesser.ARCHIVE_EXTENSIONS.length; i++) {
49              result = nameToLower.endsWith("." + ArchiveGuesser.ARCHIVE_EXTENSIONS[i]);
50          }
51          return result;
52      }
53  
54  }